Robots let art fans tour famed U.K. museum after dark

August 14, 2014, 3:51 PM|Art enthusiasts around the world have the opportunity to roam the darkened halls of the Tate Britain museum in London with the help of robots - and the Internet. Video cameras affixed to remote-controlled robots on wheels allow patrons to view the darkened museum without ever leaving the couch. CBS News' Alphonso Van Marsh reports.